ORGANIC MATTER CONTENT AND HUMUS RESERVES IN NATURAL SOILS OF ROSTOV AGGLOMERATION

The research aims to study the content of organic matter in typical chernozem, its distribution soil profile under herbaceous and wooden phytocenoses. Organic plays a key role functioning soils their stable performance ecological functions, including – protection function. This is particularly relevant growing urbanization. analysis includes 40 full-profile sections migration-segregated chernozems (typical carbonate) laid on upland Rostov agglomeration. We determined by high-temperature catalytic combustion TOC-L CPN Shimadzu an SSM-5000A solid sample unit. Based data obtained, we calculated carbon reserves. Statistical included calculation Mann-Whitney U-test consider significant differences samples indicators phytocenoses descriptive statistics. results showed influence such widespread type anthropogenic impact as planting trees steppe zone. Comparison total values similar genetic horizons indicates spatial heterogeneity this indicator, associated primarily with land use. supply humus for was assessed low average. In one-meter layer natural agglomeration, reserves are 387 t/ha, which corresponds average level. Thus, park recreational zone, where vegetation grows, special city place accumulation increased amount origin compared other